Air massage cushion



FIG. 1 is a perspective view of an air massage cushion showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines depict portions of the air massage cushion that form no part of the claimed design. 

CLAIM The ornamental design for an air massage cushion, as shown and described. 